Our two large-scale factories are well sited in ZheJiang and Guang Dong, where the specialists and engineers provide the professional OEM service, while R&D team designs and OEM the particular items according to customer's requirement. With advanced technology and an effective quality control system, our compny has gained a good reputation, particularly the "Zheng Yuan" duplexer and antenna.

In order to meet customers' satisfaction with our products, our quality assurance and technical services are closely related. We have a comprehensive quality assurance system to monitor the quality of products during the production process. The outputs have to pas strict QC processes before packing and shipment.

For upgrading quality maintenance, more than 30 QC staffs are trained to have the knowledge on IQC and ISO9002 standards. Also, using HP Brand instruments to ensure the high degree of accuracy, strictly control the qualities of our products.

To strengthen customer's confidence, the company has been granted ISO9002 certification for the manufacture of duplexers and piezo-ceramic devices in 1998.

In the fast-changing world of telecommunications, you can always rely on Liberal's components. We are committed to you the high quality product, competitive price and excellent service. In future, we will keep improving and upgrading our qualities and services. In future, we will keep improving and upgrading our qualities and services, and make our great effort to kee pace with continuous change of sophisticated technologies.